Slap is right, old theaters are often mistakingly valued at the same price as other commercial real estate nearby, but they will sit on the market for years because nobody is going to pay that much for an old theater to be used as a theater. Older single screens are a dime a dozen. Many are bulldozed because they are worth only as much as the real estate they sit on since they are extremely difficult to convert to any other use... unfortunately.
If the theater is showing a loss each year, there isn't much value in the business itself in my opinion. The equipment MAY have a little value.
Many theater sellers value their theaters MUCH higher than they will sell for due to their own personal feelings of trying to get back blood, sweat, and tears, so they just don't sell at all and go under. It's extremely rare to sell an old theater to the right individual to be run as a theater- it has to come with a very low pricetag.